NL8301916A - Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor. - Google Patents

Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor. Download PDF

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Publication number
NL8301916A
NL8301916A NL8301916A NL8301916A NL8301916A NL 8301916 A NL8301916 A NL 8301916A NL 8301916 A NL8301916 A NL 8301916A NL 8301916 A NL8301916 A NL 8301916A NL 8301916 A NL8301916 A NL 8301916A
Authority
NL
Netherlands
Prior art keywords
magneto
layer
optically active
active layer
thickness
Prior art date
Application number
NL8301916A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL8301916A priority Critical patent/NL8301916A/nl
Priority to EP84200763A priority patent/EP0127243A1/en
Priority to JP10870084A priority patent/JPS601637A/ja
Publication of NL8301916A publication Critical patent/NL8301916A/nl

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/0009—Materials therefor
    • G02F1/0036—Magneto-optical materials
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thin Magnetic Films (AREA)
NL8301916A 1983-05-31 1983-05-31 Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor. NL8301916A (nl)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL8301916A NL8301916A (nl) 1983-05-31 1983-05-31 Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor.
EP84200763A EP0127243A1 (en) 1983-05-31 1984-05-25 Thermo-magneto-optical recording device and recording element therefor
JP10870084A JPS601637A (ja) 1983-05-31 1984-05-30 熱−磁気−光記録装置および該装置用の記録素子

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8301916 1983-05-31
NL8301916A NL8301916A (nl) 1983-05-31 1983-05-31 Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor.

Publications (1)

Publication Number Publication Date
NL8301916A true NL8301916A (nl) 1984-12-17

Family

ID=19841928

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8301916A NL8301916A (nl) 1983-05-31 1983-05-31 Thermo-magneto-optische registratie-inrichting en registratie-element daarvoor.

Country Status (3)

Country Link
EP (1) EP0127243A1 (ja)
JP (1) JPS601637A (ja)
NL (1) NL8301916A (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2184618A (en) * 1985-12-11 1987-06-24 Canon Kk Magneto-optical memory medium
FR2591381A1 (fr) * 1985-12-11 1987-06-12 Canon Kk Support de memoire magneto-optique
JPS62183042A (ja) * 1986-02-06 1987-08-11 Toshiba Corp 情報記録再生方法
JPH0727606B2 (ja) * 1986-12-11 1995-03-29 ソニー株式会社 記録型光デイスクに対する磁界印加装置
US4740430A (en) * 1987-02-18 1988-04-26 American Telephone And Telegraph Company, At&T Bell Laboratories Magneto-optic memory
IT1218657B (it) * 1987-05-21 1990-04-19 Olivetti & Co Spa Dispositivo di lettura di un supporto di registrazione di dati per effetto magneto-ottico su un raggio laser
US4965780A (en) * 1987-08-12 1990-10-23 Digital Equipment Corporation Magneto-optical data recording device using a wavelength and polarization-sensitive splitter
US5573847A (en) * 1990-09-14 1996-11-12 Komag, Inc. Magneto-optic disk exhibiting a phase shift between plus and minus twelve degrees and a reflectivity between fifteen and twenty-five percent
CN106714941B (zh) 2014-09-24 2019-11-01 陶氏环球技术有限责任公司 包括一体式生物反应器的螺旋卷绕过滤组件
ES2753408T3 (es) 2015-04-16 2020-04-08 Dow Global Technologies Llc Conjunto de filtración que incluye biorreactores devanados en espiral y módulos de membrana de hiperfiltración
ES2743899T3 (es) 2015-04-16 2020-02-21 Dow Global Technologies Llc Conjunto de filtración que incluye biorreactores enrollados en espiral y módulos de membrana colocados en recipientes de presión separados
CA3018721A1 (en) 2016-03-23 2017-09-28 Dow Global Technologies Llc Bioreactor assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA805652A (en) * 1969-02-04 D. Westwood William Preparation of polycrystalline and single crystal films of ferrite spinels
US3859129A (en) * 1972-05-26 1975-01-07 Corning Glass Works Method of improving the magnetic properties of cobalt substituted magnetite
US3928870A (en) * 1973-12-14 1975-12-23 Eastman Kodak Co Magneto-optical processes and elements using tetrahedrally coordinated divalent cobalt-containing magnetic material
NL7708959A (nl) * 1977-08-15 1979-02-19 Philips Nv Werkwijze voor het vormen van een magneto-op- tische polykristallijne cobalt ferriet laag en cobalt ferriet laag vervaardigd volgens de werkwijze.
GB2083677B (en) * 1980-07-16 1985-01-23 Matsushita Electric Ind Co Ltd Magnetooptical recording medium and a magnetooptical recording-and reeproducing device

Also Published As

Publication number Publication date
EP0127243A1 (en) 1984-12-05
JPS601637A (ja) 1985-01-07

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
A85 Still pending on 85-01-01
BI The patent application has been withdrawn